Inventions - Single MCQs (Page 2)

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Q11. Gun powder was invented by?...Q12. Which of the following theories was not proposed by Charles Darwin?...Q13. The first operational compound microscope was developed by?...Q14. Who developed the telegraphic code?...Q15. The petrol engine was invented by?...Q16. The scientific study of ageing is known as?...Q17. Who invented X ray?...Q18. The law of definite proportions is associated with the name of?...Q19. Cholera bacillus was discovered by?...Q20. Who invented the Lift?...